export declare type CoveredLocales = 'en-GB' | 'en-US';
export default class FinesseUtil {
    static sanitizePhoneNumber(number: string, locale: CoveredLocales): string;
    static unformatPhone(phoneNumber: string): string;
    static _formatPhone(phoneNumber: string): string;
    static _sanitizeState(state: string): string;
    static _promiseErrorHandler(error: Error): void;
}